Add request_form french translation (#1636)

app/src/main/res/values-fr/strings.xml

@@ -8,7 +8,7 @@
 
     <!-- The hint shown in the search bar, with %d as the number of icons. -->
     <!-- We don't currently provide a singular form, because it's always guaranteed that there will be atleast 2 or more icons. -->
-    <string name="search_bar_hint">Rechercher %d icônes</string>
+    <string name="search_bar_hint">Rechercher parmi %d icônes</string>
 
     <!-- Text shown when there are no search results-->
     <string name="no_items_found">Aucune icône trouvée.</string>
@@ -18,11 +18,15 @@
     <string name="acknowledgements">Mentions légales</string>
     <!-- Popup menu item that links to the About page -->
     <string name="about">À propos</string>
-
-    <!-- About page -->
     <!-- External Links label -->
     <string name="external_links">Liens externes</string>
 
+    <!-- External Links labels -->
+    <!-- Icon Request form link -->
+    <string name="request_form">Formulaire de demande d\'icône</string>
+
+    <!-- About page -->
+
     <!-- Contributors section of About page -->
     <!-- Contributors label -->
     <string name="contributors">Contributeurs</string>